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authorSreenivasa Honnur <Sreenivasa.Honnur@neterion.com>2009-10-05 01:56:35 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-06 15:22:54 -0700
commitfa41fd10038ab575f043a62dace374e07e9193de (patch)
treeadd9b20df4537b846f0571871d7e7d751d037dc5 /drivers/net/vxge/vxge-config.c
parentf0dfebafcc14a7456eb6ae974b68f600fdd8b42d (diff)
vxge: Check if FCS stripping is disabled by the firmware.
- Added a function to check if FCS stripping is disabled by the firmware, if it is not disabled fail driver load. - By default FCS stripping is disabled by the firmware. With this assumption driver decrements the indicated packet length by 4 bytes(FCS length). - This patch ensures that FCS stripping is disabled during driver load time. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vxge/vxge-config.c')
-rw-r--r--drivers/net/vxge/vxge-config.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/vxge/vxge-config.c b/drivers/net/vxge/vxge-config.c
index 933237ec38d..c07a7379cfa 100644
--- a/drivers/net/vxge/vxge-config.c
+++ b/drivers/net/vxge/vxge-config.c
@@ -2157,6 +2157,28 @@ exit:
}
/*
+ * vxge_hw_vpath_strip_fcs_check - Check for FCS strip.
+ */
+enum vxge_hw_status
+vxge_hw_vpath_strip_fcs_check(struct __vxge_hw_device *hldev, u64 vpath_mask)
+{
+ struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
+ enum vxge_hw_status status = VXGE_HW_OK;
+ int i = 0, j = 0;
+
+ for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
+ if (!((vpath_mask) & vxge_mBIT(i)))
+ continue;
+ vpmgmt_reg = hldev->vpmgmt_reg[i];
+ for (j = 0; j < VXGE_HW_MAC_MAX_MAC_PORT_ID; j++) {
+ if (readq(&vpmgmt_reg->rxmac_cfg0_port_vpmgmt_clone[j])
+ & VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_STRIP_FCS)
+ return VXGE_HW_FAIL;
+ }
+ }
+ return status;
+}
+/*
* vxge_hw_mgmt_reg_Write - Write Titan register.
*/
enum vxge_hw_status